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Preparation method of high-power soft-package ferrous disulfide battery

A technology for iron disulfide batteries and flexible packaging batteries, which is applied in the direction of primary batteries, battery electrodes, non-aqueous electrolyte batteries, etc., and can solve the problems of affecting battery energy, large polarization, and large thickness of lithium in the negative electrode, so as to improve discharge capacity and operate Convenience, improve the effect of voltage hysteresis

Inactive Publication Date: 2017-05-31
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the Li / FeS 2 With the improvement of battery capacity requirements and the increasingly mature technology of lithium-ion flexible packaging batteries, people are more interested in Li / FeS 2 There are more and more researches on flexible packaging batteries, Li / FeS 2 In flexible packaging batteries, most manufacturers use rolling film technology, the positive electrode plate is relatively thick, and the thickness of negative electrode lithium is also relatively large. During the discharge process, the polarization is relatively large, which affects the Li / FeS 2 The play of battery energy

Method used

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  • Preparation method of high-power soft-package ferrous disulfide battery
  • Preparation method of high-power soft-package ferrous disulfide battery
  • Preparation method of high-power soft-package ferrous disulfide battery

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Embodiment 1

[0024] A preparation method for a high-power flexible packaging lithium iron disulfide battery, which prepares a high-power flexible packaging lithium iron disulfide battery, including Li / FeS 2 The preparation process of the positive and negative electrodes of flexible packaging batteries, the positive electrode uses the active material FeS 2 , The conductive agent contains Ti 4 o 7 , the positive electrode is prepared by coating method, and the Li / FeS 2 The power characteristics of the battery. The conductive agent is Ti 4 o 7 , or Ti 4 o 7 It is mixed with one or more of conductive carbon black, conductive graphite, vapor-phase grown carbon fiber, Ketjen black, carbon nanotubes, and graphene. When preparing the positive electrode by coating method, the coating amount should not exceed 30mg / cm 2 .

[0025] The concrete implementation process of this embodiment:

[0026] Step 1 Manufacturing process of flexible packaging positive electrode plate

[0027] Weigh 90wt%...

Embodiment 2

[0033] A preparation method for a high-power flexible packaging lithium iron disulfide battery, which prepares a high-power flexible packaging lithium iron disulfide battery, including Li / FeS 2 The preparation process of the positive and negative electrodes of flexible packaging batteries, the positive electrode uses the active material FeS 2 , The conductive agent contains Ti 4 o 7 , the positive electrode is prepared by coating method, and the Li / FeS 2 The power characteristics of the battery. The conductive agent is Ti 4 o 7 , or Ti 4 o 7 It is mixed with one or more of conductive carbon black, conductive graphite, vapor-phase grown carbon fiber, Ketjen black, carbon nanotubes, and graphene. When preparing the positive electrode by coating method, the coating amount should not exceed 30mg / cm 2 .

[0034] The specific implementation steps of this embodiment:

[0035] Step 1 Manufacturing process of flexible packaging positive electrode plate

[0036] Weigh 85wt% FeS...

Embodiment 3

[0042] A preparation method for a high-power flexible packaging lithium iron disulfide battery, which prepares a high-power flexible packaging lithium iron disulfide battery, including Li / FeS 2 The preparation process of the positive and negative electrodes of flexible packaging batteries, the positive electrode uses the active material FeS 2 , The conductive agent contains Ti 4 o 7 , the positive electrode is prepared by coating method, and the Li / FeS 2 The power characteristics of the battery. The conductive agent is Ti 4 o 7 , or Ti 4 o 7 It is mixed with one or more of conductive carbon black, conductive graphite, vapor-phase grown carbon fiber, Ketjen black, carbon nanotubes, and graphene. When preparing the positive electrode by coating method, the coating amount should not exceed 30mg / cm 2 .

[0043] The specific implementation steps of this embodiment:

[0044] Step 1 Manufacturing process of flexible packaging positive electrode plate

[0045] Weigh 91wt% F...

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Abstract

The invention relates to a preparation method of a high-power soft-package ferrous disulfide battery. The invention belongs to the technical field of lithium primary batteries. The preparation method of the high-power soft-package ferrous disulfide battery has the characteristics that preparation of the high-power soft-package ferrous disulfide battery comprises the preparation process of a positive electrode and a negative electrode of a Li / FeS2 soft package battery; the positive electrode adopts an active substance FeS2; a conductive agent contains Ti4O7; the positive electrode is prepared by a coating mode; the power characteristic of the Li / FeS2 battery is improved. The preparation method of the high-power soft-package ferrous disulfide battery has the advantages of simple process, scientific formula, convenience in operation, capabilities of improving the power characteristic of the soft package battery, improving voltage delay of the Li / FeS2 battery, and improving the discharge capacity.

Description

technical field [0001] The invention belongs to the technical field of lithium primary batteries, in particular to a preparation method of a high-power soft-pack lithium iron disulfide battery. Background technique [0002] At present, in the current 1.5V system power supply, the theoretical specific energy of the lithium iron disulfide battery is relatively high, and its main features are: 1. Direct compatibility - can be used in any occasion where a 1.5V primary battery type is used; 2. Good high-current performance, The service life is longer than other types of batteries; 3. Good high and low temperature performance, wide temperature range; 4. Lighter weight, higher specific energy than other primary batteries; 5. Good shelf performance, can be stored for 10 years; 6. Green battery, no added heavy metals. Taking AA battery normal temperature and low current discharge as an example, compared with alkaline manganese battery, Li / FeS 2 The battery has a 25% increase in cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/58H01M6/00H01M6/14H01M4/62
CPCH01M4/5815H01M4/624H01M4/625H01M6/00H01M6/14
Inventor 王九洲尚晋米娟
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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